아파트 발코니면적의 시계열적 변화와 내재가치 추정에 관한 연구

Abstract

The purpose of this study is to review the historic change of balcony of apartment in Seoul for the last three decades and estimate the imputed value of the balcony space. The balcony data of the 310 apartment units of Seoul were collected on the real estate information service sites which provide floor plan of each unit. The other data for the Hedonic Price Model to detect imputed value of balcony were gathered on the public apartment data provider including Korea Appraisal Board and National Statistical Geographic Information Service. The results are summarized as follows. First, the last 33 years can be divided into 3 periods: 1983 to 1992, 1993 to 2003, and 2004 to 2016. The Balcony to Exclusive Using Area Ratio (BER) raised from 19.6 percent to 24.3 percent in early 1990s. The BER change from period 2 to period 3 is about 8.7 percent point (from 24.3 to 33.0). The changes seem to be caused by rapid housing demand under the loose regulation on balcony renovation. Because the balcony area is excluded when the government calculates the floor area for taxation and building permission. Therefore, Koreans usually wanted to expand the balcony illegally and the space was changed into interior area such as bedroom and livingroom. Second the estimated unit value of balcony is about 6.4 million won per square meter that is more expensive than that of original interior area , 4.7~5.9 million won per square meter. The results provide meaningful policy implications associated with housing market. The existing incentives and benefit for under mid-sized house should be adjusted to the increasing housing demand. For example, decremental incentives by the house size increase can be adopted. Second, a new floor area standard including balcony size is necessary to realize fair taxation and building permission. This study suggests that we can call the new floor area standard ‘Real Using Area.’